A friend of mine did the BD

A friend of mine, who doesn't have access to use the forum, Is unsure of what her body is doing, she and her DF have been TTC and she started getting all the usual symptoms of early pregnancy, AF was late, but HPT came up BFN, Though she still feels all the same symptoms, and has even starting to get an ache in her back, AF came after a week and a half, but was very light and wasn't constant, was barely there one day and gone the next, only to barely be there again later in the day, on and off for about 4 days. Is it possible that she could be PG but the test was faulty?

TIA :)

Yep, or she tested too early. The best way would be to go to her doc and get a quantitative HCG blood test, it'll tell her what her HCG level is. Good luck to her, and also to you!

Thanks Keike!! I will pass that on to her :) :)
And thank you for the luck :)